vortex ring的例句大全

In this paper, the subsonic unsteady aerodynamic performance of a noncoplanar wing-tail combination can be computed on condition that the velocity potential function of unsteady vortex ring is taken as an elementary solution and the method of time history ( MTH) is used.

本文以非定常涡环速度势函数为基本解，应用时间历程方法，计算非共面机一尾翼组合体的非定常气动力性能。

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The range of yawing rate when turning left in hover is calculated, where the tail rotor might get into vortex ring.

根据右侧飞试验结果，估算出样机悬停回转时尾桨处于涡环状态的偏航角速度范围；

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through 5 to create a vortex ring shape form of stairs.

通过5个环形造型楼梯营造出旋涡形式。

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the bigger and faster spinning a vortex ring is, the stronger the pressure difference.

更大和更快的纺丝一vortexring是，强大的压力差异。

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the gao-xin criterion of vortex ring is compared with some overseas criteria.

将试验结果与国内外的涡环状态判据进行了对比。

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a reasonable criterion of vortex ring state boundary for helicopter is acquired based on model rotor tests.

通过模型旋翼试验得到了合理的直升机涡环边界判据，并由此计算得到了直升机通用涡环状态边界。

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a vortex ring model of large-scale structures for simulation of turbulent jets in crossflow

湍流横向射流大涡模拟及大尺度结构的涡环模型

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investigation of blade-pitch effect on helicopter vortex-ring state using bp method

使用BP算法研究桨叶安装角对直升机涡环状态的影响

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helicopter vortex-ring state boundary and flight safety

直升机涡环状态和改出

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research of vortex-ring state of helicopter flight

直升机飞行中的涡环状态研究

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The nozzle structure and twisting principle of vortex spinning nozzle are both different from traditional air jet spinning and the appearance of the vortex yarn is similar to the ring spinning yarn.

喷气涡流纺的喷嘴结构和加捻原理均不同于传统喷气纺，喷气涡流纱的外观类似环锭纱。

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helicopter vortex-ring state influence flight safety badly, whose flow characteristic is very complex and hard to calculate accurately.

直升机涡环状态严重影响飞行安全，其气流特性非常复杂，难以准确计算。

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flight test investigation of helicopter vortex-ring state boundary

直升机涡环状态边界的飞行试验研究

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analysis of blade negative-twist effect on helicopter vortex-ring state

桨叶负扭度对直升机涡环状态影响分析

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research on data process of helicopter vortex-ring test

直升机涡环状态试验数据处理研究

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